Possibly the standard nfs code needs teaching how to set the length and
address family in order to support non-netbsd sockaddr.
There are now no active stackgap() calls in the compat tree.
ioctl in order to change the display colours.
Changing the code to not need the stackgap is rather pervasive, and it isn't
at all clear this is useful effort given the suspected bitrottedness
of compat darwin.
cmsg->cmsg_len is 'size_t' not 'socklen_t' - so it is 8 bytes on 64bit
platforms instead of 4. There is also never padding after the header.
Redo linux sendmsg() so that it stands a chance of getting it right.
Redo linux recvmsg() so that it process control data directly from the mbuf
list. Allowing it to hack the data without using the stackgap.
so that it isn't necessary to copy data to/from the stackgap.
Given the nature of the code in this file, it is now probably slightly
more broken than previously. but nothing serious should be worse!
in order to avoid the stackgap (etc).
Note that since changing the darwin socket address is simply a matter of
translating the address family and adding sa_len, it can easily be done
on the mbuf resident address before/after copying to/from userspace.
Simplify the convertion of AF_LOCAL addresses by usingthe user-supplied
buffer length instead of dowing an unbounded strlen().
Untested - did this work before?
If sa_len is zero, believing the size passed to bind/connect seems
better than trying to strlen somthing that might run off the mapped kma.
Verify the address family against the array size before indexing.
the compat_10 and compat_14 functions - makes the code neater and, removes
many data copies and also removes the stackgap use.
Also (indirectly) fixes some code paths that fotgot to do copyin/out.
values of the SS_ONSTACK and SS_DISABLE constants.
Use it to shorten the source files when this action is replicated.
Actually, given the monstrous complexity of sigaltstack1() there is
probably a much better way to do this...
doesn't obtain the ports, gain and balance related parameters.
Those generally require reading from the hardware and therefore are much
more expensive to obtain. Modify OSS emulation to use the new ioctl
where possible.
This reduces CPU usage of mplayer during mp3 playback with my Thinkpad
from 20% to < 1% and from 50% to 20% during Xvid playback.
Review and comments from jmcneill@
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